Hey cbass! Welcome to the forum. I saw the pictures of your truck in your gallery. Looks really nice. Tell us some more about it (and of course, more pix!) Let us know what you've done to it other than a 2" dropped axle. I'm sure someone will offer up some suggetions on a good shock for that application!
Measure your distance from shock mount to shock mount at ride hight, at full compression and at full droop ( jack it up) Go to Monroe's website to find application with similar measurements and the same mount styles.